Semantic JSON diff

JSON Compare Tool

Paste two JSON objects and get a structural comparison that ignores indentation and object-key order. The report identifies the exact JSON paths that were added, removed, or changed.

No upload Free to use Works on mobile

Data tool

JSON Compare

Options

JSON differences

0 results

How to use JSON Compare

1

Paste valid JSON

Add the original document on the left and the updated document on the right.

2

Run a semantic comparison

Objects are compared by path, so whitespace and key order do not create false changes.

3

Review changed paths

Copy an audit-friendly list of additions, removals, type changes, and updated values.

Common uses

API response checks

Compare responses across deployments or environments.

Configuration review

Verify exactly which settings changed between versions.

Data migration QA

Compare representative records before and after a migration.

JSON Compare FAQ

Is JSON Compare free to use? +

Yes. JSON Compare is free to use without an account or usage meter.

Is my data uploaded or stored? +

No. The processing for this tool runs locally in your browser. Entered content is not sent to our server.

Does JSON key order affect the result? +

No. Object properties are compared by key path. Array order remains significant because changing array positions can change meaning.

Keep working

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